Centrifugal pump.



R. H. DIXON.

GENTRIFUGAL PUMP.

APPLICATION FILED M1020, 1911.

Patented Jan. 14, 1913.

2 SHEETSf-SHEET 1.

BV amd, @Oem/dw,

ATTORNEYS R. H. DIXON.

GENTRIPUGAL PUMP.

APPLICATION FILED DEG. 20, 1911.

Patented Jan. 14, 1913.

" 2 SHEETS-SHEET 2.

. g l5 5l! 7.

15 2U 4 .M d /2 5 /7 I '3 lq 6' E 'E E.. f lil/ITNESSES: INVENTUM My a fla-1 HBH@ lf2 111A I\,

A TTORNEYS rosaaaa.

To aZl whom t may] concern.' I v' untrue srarns rarnnr ernten.

RALPH H. Dixon, or Nnwann, NEW Jnnsnr.

cnu'rnrruear. ruine.

Be it known that, l, RALPH H. Dixon, a citizen of the Unitedv States, residing at Newark, in thel county of Essex and Sta-te of New Jersey, have invented certain new and useful Improvements in Centrifugal Pumps,

and do hereby declare the following to be a r full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use t-he same, reference being had to the accompanying drawings, and ,to characters of reference marked thereon, which form a part ofthis specification.

This invention relates, generally, to improvements in pumping apparatus; and, the

present invention has reference, generally, to

a novel construction of pum of the centrifugal type, wrt-h a view ot providlng a simply constructed and ethciently operating centrifugal pump in which therevolutions of the impeller create a vacuum,

sucking the water with greater force into the casing of the apparatus, and in consequence discharging the water in greaterv quantities and greater force than is the case with the usual forms of centrifugal pumping apparatus.

rlhe present invention has for its principal object to provide a BO centrifugal pump of a simple and unique construction, the general design of which is such that a maximum eciency is the result.

The invention has for its further object to provide a centrifugal pump, the impeller of which is formed with two sets of vanes of 4diiferent shapes or configuration, and for the sake of designation will bey termed herein as `.the .power-water-vanes and the vacuum by the production of al vanes, said vanes being alternately disposed thereby producing an apparatus in which the water when received through the suction head; but, the vacuum vanes not merely` throw the water, but by their revolutions and on account of their shape create a vacuum, and suck in the water with greater force, and on account of the tremendous suction gained discharge thexwater in great quantities and with increased power from the ump. l

T e-L invention has for its further object, centrifugal f pump provided with the form of vacuum vanes herein-above stated, to providea pumpin which the usual vacuum-seals formed in the suction passages are broken, thereby enabling Specicatonof Letters Patent.

pOWer-Water-vaneS throw the Patented aan. ie, lala.

Application led December 20, 1911. Serial No. 666,977.

the apparatus to pump the water, mixed with air to at least 35 per cent. and, nally providing a centrifugal pump of maximum efficiency, which is smaller in size and light 1n weight, and consumes less power in running it, than with the usual forms of centrifugal pumps. e

The invention has for its further obj ect to construct the vanes in such a manner so as to provide each vane with what is herein termed a water-brush formed by the outgoing water at the leaving edge`r of each vane, such water brush contracting and expanding according to the arithmetical spiral of the casing, and by its action sweep ing out all sluggish water and'any particles of air which'may lie dormant therein and thereby providing a free and unobstructed passage of the water after it leaves the impeller through the discharge-chamber of the pumprasing and out from the discharge kopening or exit of the same, and at the same time aiding in the creation of the vacuum hereinabove mentioned. v

@their objects of this invention not at this time more particularly enumerated will be clearly understood from the following detailed description of the present invention.

|The invention is clearly illustrated in the accompanying drawings, in which Figure l is a central longitudinal vert-ical sectiony of a centrifugal pump, showing one embodiment ofthe principles of the present I invention; and Fig. 2 isa transverse vertical section of the same, said section being taken on line 2 2 in said F ig. l, looking in the direction of the arrow Similar characters of reference are employed in all of theabove described views, to indicate corresponding parts.

Referring now to the said-figures of the drawings, the reference-character 1 indicates one form of centrifugal pump made according to and embodying the principles of the present invention, the same comprising a main member or element 2 which is of a crcular marginal configuratiomand isl preferably provided with a pair of annular ofi'- sets, as v3 and 4, substantially as illustrated in Fig. 2 of t-he drawings. Connected with and preferably forming an integral part of the central and open portion of said main member. orelement 2 is a tubular inlet-mem ber 'or duct 5. Suitably mountedu upon the annular shoulder formed by the said shoulder 3 is a chambered cover-section or element 6,

a auitanijjr secure l rts in spon Wlnen s; liu Uonneoted Wide. l y

itil C i, 'alie said eover-seotion or element 6 annular oliainlaered portion or element i l@ iv oli s olf a sunstantiallj/ circular erossindicated at lll, and as clearly shown aid Figs. -l L7; o" 'loe drawings. This olianibered elennernJ l plovides a suit able diliusion eliainlner tliougli which tlie liuid moves and is iinalljy forced with great pressure or force from a tubular' outlet member or element vvliioli is eonneoted 'with tlie olianiber ot said element l. The said eliainbered portion or element i3 is also -frovided ivitli a narrow `portion l5 which eoneentrie ivitli ltime expelling portion oit .ie iniieller disk or element to be presentlyv described, iior itoroing the tluid from the X ilades or vanes oi tlie iinpeller into said diffusion eliainoer, to be whirled about the said eliainloei and forced under pressure from the outletnieinber or element 16, as vill loe clearly evident. The said iinpellerdislr or member consists, essentially, of tivov dislolile elements or plates l? ano i8 which are of -cireular marblnal eonguration, said elements or plates l? and 18 loeingu -placed apart, so as to provide a. space between themA and having' suitably arranged in'said space a number ol3 alternately" disposed spiral inipeller-vanes, as i9, and the vacuum-providing vanes 2G, all ot said vanes or blades extending laterally across the said' space and being pivoter-ably integrallj,7 connected 'with tlie oppositely disposed itaoes of tlae said disl-lilze elements or plates l? and i8, substantially in the manner illustrated in said llie". 2 of tlie drawings. its shown in Fig, l, tne iinpeller blades or vanos 19 are formed Witlof. the convex surfaces 2l :tor causing an easy and practically :trietionless llovv" of the fluid into the dittusion chamber, and with the Convex impact-receiving and power-produeingl surfaces 22, upon ivliielfi the energyY of tli-e impelling itluid is exerted for producing' the rotary and iinpelling action oi' the impeller.

The vaouunfiprovidingy vanes or blades 20 are-formed with a concave-Convex surface, gll, the concave portion 23 serving Tietionl jo an@ i520, i'

. oe Contained in the lluid, and thereby torro-` Tpositive vacuum in tlie pocket-like deformed by tlie saiti concave sun ee 25. Thus it will lie evident, iat between eaoli pair ot lades or venes i9 and 20, to tlie detriment oit tlie exlicieney out the apparatus; and, with the vaouum created, tlie liuid is sucked with increased 'torce zt'ioin between the said vanos or blades and discharged vv'itli l@greatly ining,` a 'pression BO "a portion no air can eolleet lcreased and maximum eliieieney into the dill fusion olianiloer and from tlie diseliarpgemember 16 of tl'ie centrifugal pump. .llie said vanes or blades lil and are also nrovided in their outer and leaving edgeqaortions with a suitably formed means, *pre-iterably in the forni as 3l, over which the lluid as it passes 'troni the revolving,l inipeller forms suitable Waterlnruslies or riflies. These grooves or outs 3l preferably extend along the entire edge oit eaeli vane or blade, trom tlie disk-lilieelev nient or plate l? to the dislolile element or platte 18; and, by tlie revolutions ot tlie in1- peller the outgoing iuid or vv'ater in strik ing these grooves or eut-s 3l ural Water-brush or rililes Awhich contract and expand according to the aiitlinietieal spiral'oit tlie easing, and serve as a means tor sweeping out ot' the diusion eliai'nler all sluggish Water, and any particles otair that may otherwise. remain dormant tlerein. "Elie action of the aforo-said grooves 3l is such that as the Water leaves the 'face of eaelu vane, and tlows over the grooves, it is 'whirled into an eddy at each leaving edge ot the vane, tlius causing the volume of vvater to expand and Contract,` with relation to tlie aritlimetioal spiral olf the easing, and sweeping; out of the easing all Water which may otherwise remain sluggish or tween the vanes. @Wing toy 'this tact, it is possible to obtain the maximum laeneit of each and every revolution ot the impeller to instemt-receiving of depressions or grooves,y

will giorni nat-- dormant loe- A produce a positive pressure. This action of the fluid or water at the leaving edges of the vanes or blades also aids in the creationof theaforesaid vacuum, while creating an increased and unobstructed flow of the duid or water under greatly vincreased efliciency from the dischargefmember 16 ofthe apparatus.V As illustrated in Fig.2 of the draw-l ings, the said disk-like element or plate-17 is provided with a centrally disposed and laterally extending annular flange, as 32, which extends into the o'set 4 herein-above mentioned and is rotatably disposed therein, said annular flange 82 providing the tubular inlet or intake of the impeller. (Elie inner A surface of said flange 32 is made convex and is of such curvature, so -as to 'oder the least resistance to the liow of the liquid into the space between said elements or plates 17 and 18. The said element or plate 18 carries a tubular hub or boss, as 33, which is-made conical, as sho-wn, and extends partway into the opening forming the said inlet or intake, the said cone-shaped hub or boss being of concave conguration and corresponding to the convex surface of the tubular inlet or intake, so as to oiferlthe least resistance to the flow of the lluidefrom saidl inlet or intake, and serving at the same time as aproper director for the fluid or water to the' vanes or blades 19 and 20. By means of the said hub or boss the impeller is mounted upon the free end-portion of the previously. mentioned shaft or axle and directly against the annular collaror shoulder of said shaft or axle to take up any thrust, and to prevent shock and vibration, and heating due to the rapidly running parts. As shown, the

said element or plate 18 may also be provided with suitably disposed holes or perforations, as 34e, which establish communication between the space formed between the said disk-likeelementsl' and 18 and the chambered portion of the main casing in which the impeller revolves,` vfor the perfect lubrication of ,the various parts, as will be clearly understood. f

From the foregoing description of the present invention, it will be. clearly evident,

that l have devised a simply constructed and smoothly acting centrifugal pump, which will run with greatly increased eiiiciency and at a minimum expenditure of cost, the 'parts of the apparatus having also been reduced to a minimum, and'tbeing a1'- ranged and constructed so as to offer the' least resistance or impediment to the flow or passage ofthe fluid through the pump, and furthermore preventing shock and vibration.

I am aware that some changes Imay be` made in the arrangements and combinations of the various devices and parts, as well as in the details of the construction of the same, without departing from the scope'of tively with an inlet and an outlet, an imand impeller lmember and cover-sectionv formed respectively with an inlet and an outlet, an impeller-element rotatably arranged between 3@ said main member and said cover-section, and impeller vanes connected with said im peller-lelement, every other vane being provided with a pocket-like depression ofsuch shape so that the fluid passing between each pair of vanes will produce a vacuum between said vanes.

A centrifugal pump comprisingamain member and cover-sectiony formed respecpeller-element rotatably arranged between saidmain member and said` cover-section,

vanes connected with said impeller-element, `one set of vanes, being formed on one side with convex surfaces and upon their opposite sides with concave impact-receiving and power -producing surfaces, and another set of said vanes being 'provided with pocket-like depressions of such shape so that the-duid passing be- `3100 tween the vanes will produce alvacuum between the vanes.

8. A centrifugal pump comprisinga main member and cover-section formed respectively with an inlet yand an outlet, an impeller-,elementI rotatably arranged between said main member and said cover-section, and impeller vanes connected with said impeller-element, one setof vanes being formed on one side with convex surfaces and upon their opposite sides with concave impactreceiving and power-producing surfaces, and another set of said vanes being Iprovided upon one side with concavo-convex surfaces and upon their oppositesides with M5 convex-concave surfaces, said last-mentioned concavo surface-portions providing pocket-like depressions of such shape so that the iluidpassing between the vanes will produce a vacuum between the vanes.

4. A centrifugal pump comprising a main member formed with an inlet, a chambered cover-section, an annular chambered portion forming a diffusion chamber connected with saidchambered cover-section,- an impeller- 125 element rotatably arranged within said cover-section, said impeller-element comprisingdisk-like plates, and impeller vanes between said disk-like plates, one set of, vanes being formed on one side with convex 13o i niet upon ziieii opposite i "pae't-ieeeiving en@ "Kieesvl` end another s Qovidee 'with peeliet-iiiie enen s'nnoe se the niet "een @nes 'will joi'ediiee n e mem site sides wit-e eoneem'e et-igeeeivi #fee inducing ,nen

ei lunes being i met-ieee; ng and' pewei--pe e. j f ieeeD 1nd iinoifie'; E oi; sine. Vanef oe ng provided. Upon ene sie'e Wit eoiieef/e-eeiivezi: sniieees end the@ ei pesite sides with convex-concave siinteees seid iest-nientionefi eoneeve f siiTeee-jeeitiene pi'oifiding poeket-'iike depessions of enel shape se that the iiuici passing' bein-Vee.` the venes "1h-fili poeiuee e *vacuum bet-Ween the venes.

6, il eentiiiugei vonine eompising ineinbei" .'teiineei w with en iniet, eiienibeijeci eoifeiseetion, en annular eheinbeiedpetion teeming e fiii'iusion Chamber eonn'eeteei with seid ehenibeied eovenseetion, an inenpeiieev eienient ietetzibij/ arranged7 Within seici eeifei-seetion, sind iinpelie-eienient eempi'ising.; disk-like nietes, vand iinpeiieiji/enes between saisi disieiike nietes, eveiy other Vene being eonstlueteci so that the iuid 'pessiiig between each 'pair o venes Wiii produce veeiiuin between sziifi venes, and seici venes ieeingg termed in theii' iezwing edges with gieoves oi1 ents adapted to @reduce wetenfusiles kei ii'fies of the iiii `Ves seni Yanes.

,7 centrifugal es the sanne i. i 'pump eeinpieising e mein meinbei 'o-iineci with ein inlet, e ehemfoeieei eoVei'-seetion, en ennuiet eiieinb'eieci eitien'oiining ii diffusion eiieinbeif eenneeted with seid eiieinbefed eeveiseetio-n, en impe'iieib-eienient rotatably eii'engeei within seid cover-Section, seid impeiiei eieinent eo-nipiising disklike plates and impeiiei Mvenes between sei'ci disk-like nietes, ei/'eiy @they mine being provided 4with e neeket-iike depression of sueh shape so that the' Etnici passing between eaeh pzii: of venes iii/iii produce e Vacuum between said venes7 'enti said venes being oi'niefi in tiieii 1lem/'ing edgeswfvith grooves oi" cuts adapted teproeine-e Waiter-binshes ei fiiiies eff the 'Fluid es the seme leaves seid `reines.

m Centrifugal pumpj `iti?, suie. eiiziinioeiee @mien-section.) en iinf'ieiiei-eieinent ete eiienueei Within seni eenen-section, s peiieif-eie 1 i if,

peli/ei venes between seid ,i l one set ef venes being 'eiineei on one siete witheenveli suifeees zine. i 'eii" epee i i iessions of eeen Snape seing between. the if 'iin bete/een the venesu and. .L ieiine. in tiieii leef/in v nietes7 iingeeiie; mentes ei ents miente@ to i, d isnigie'e 1e set bius'foes ei iiiiies ei? the ined en. ene sie"M l eenvezi ieivef venes.

1 eii opposite sides 'with it eentifugai f eiinijgmein niein'eei :oiinee with en iniet9 e Ciminbeneei ooifei?-seetion,` en ennuie-f eiiziinbeiei ioeitien feeling zi diffusion eiienibei eoneiieinbeed ee-Vei'-sectienv ein inQp'eiier-eieinent i'otziteblj eimnegec'i Within, seid eeif'ei-seetion7 seid i 4#element impei'* *Janes eeinpiising disk-like gizvtes7 between seid ish-*pietese ene set oit venes being eiineci en one side with convex surfaces end upon theii opposite sides with eoneeive inipeet-ieeeiving and power-@twine ing SiiieCeS, end enothei set ei" seid vaines being; piovicieci upon one side with commen eenven sui'ieees mici upon their opposite sides with eeuwen-Genome suifeeee, seidiest'n mentioned ee-nezwe surface-portions pi'ovit ing pocket-"like depiessiens of sueii simlpel se that the fluid passing between the Yenes Wiii piociiiee e, vziouuin between the venes7 wifi seid venes being tenne@ in their i eeiges with giooves/ei" outs adepte@ te pix @mee Wntei-brusiies ei iriiiies the 'Huid me the seine ieeves seiii venes.

eentiiitugei pump eoinpirising mein member termed with in inietj e ehem- 1oeifeci eovenseetiong a 1neming eonneeteci with seid Geven-section, e shaft ietetebij; iiionnte i in seid beating, sin ennuie? eheinbeieci pei tion ifefniing e diffusion ehe-miner connected with seici eheinbeied cover-seetien7 zin inipe'iiei' ifotetebiy eiengee Within seid ooi/ei`- section., sei'c. iinioeiiei' eompiising e, paix? et tiek-"like 'pietes being pirovicied 'with zin intake opening and; :in einniiieeifiiingge snrounding saiei (ripening, seici iiengge being ice-- tetebij/ connected with the intziie'ei inlet o seid mein ineniioeiTj and e tnbiiim init: eonneeteci with said @they disk-iikeplete toi mounting the iinpeilei. upon smid simi/o7 smid heb being ei e concave Conformation and extending into the intake-opening et tin other disk-like Piate,

and iinpeiief vaines bel ytween seid disieiiiie plates, one set of veine:

iieeteel. with seid being oimeci on ene side with convex sui' feces and upon their opposite sides Witt eoneeve impiet-iieeeiving and powenpio dueing sufieees, enti another set oi een Y vanes being provided upon one side with 1 concave-convex surfaces and upon thelr optatably connected with impeller upon said shaftysaid hub being of al posite sides with conveX-concavo surfaces, said last-mentioned concavo surface-portions providing pocket-like depressions of such shape so that the fluid passing between the vanes will produce a vacuum between the vanes.

ll. A centrifugal Apump comprising -a main memberformed with an inlet, a chambered cover-section, a bearing connected with said cover-section, a shaft rotatably mounted in said bearing, an annular chambered portion forming a diffusion chamber connected with said chambered cover-section, an impeller rotatably arranged within said co-versection, said impeller comprising a pair of disk-likeplates being provided with an intake opening and an annular flange lsurrounding said opening, said flange being rothe intake or inlet of said main member, and a tubular hub connected with said other disk-like plate for mounting the impeller upon said shaft, said hub being of a concave conformation and eX- tending into the intake opening of the other disk-like plate, .and impeller vanes between said disk-like plates, I constructed so that the f'luid passing between each pair of vanes will produce a vacum between said vanes, and said vanes being formed in their leaving edges with grooves or cuts adapted to produce water-brushes or riflies of the fluidas the same leaves said vanes. e i

l2. A centrifugal pump i, vcomprising a main member formed with an inlet, a chambered cover-section, a bearing connected with said cover-section, mounted in said bearing, bered portion forming an4 annular champair of disk-like plates being provided with an intake-opening and surrounding said opening, said flange being krotatably -connected with the intake or inlet of said-main member, and a tubular hub connected' with said other disk-like plate for mounting the concave conformation and extending into 'i the intake-opening of the other disk-like plate, and impeller vanes between said disklike plates, every other vane being provided with a pocket-like depression of'such shape so that the fiuid passing betweeneach pair4 of vanes will produce a vacuum between said vanes, and'saidvanes being formed n their leaving edges with grooves or cuts adapted to produce water-brushes, or ries of the fluid as the Asame leaves saidfvanes.

13. centrifugal pump comprising a main member formed with an inlet, a cham. bered cover-section,

every other vane being a shaft rotatably y a diffusion chamber, connected with sald chambered cover-section,

a bearing r connected with said cover-section, 'a shaft rotatably mounted in said bearing, an annular chambered portion forming a diffusion chamber connected With vsaid chambe'red cover-section, an impeller rotatably arranged within said cover-section, said impeller comprising plates being v proof a concave conformation and eXtendin intotheyintake-opening of the other disk-y like plate, and impeller vanes between said disk-like plates, one set of (vanes being and upon their opposite sides with concave impact receiving and power producing surfaces, and another set of saidfvanes being provided with pocket-like depressions of an annular chamdift'usion chamber tion, an impeller rotatably arranged' within said cover-section, said impellerlcomprising a pair of disk-like plates being provided with an intake openingL and an annular flange surrounding said opening, said flange or'inlet of said v,main member, and a tubular hub connected with said other disk-like plate'for'mounting the yimpeller upon said shaft, said hubbelng of a concave conformation and extending into the intake-open ing of the other disk-like plate, and impeller vanes between said disk-like plates, onev set yof vanes being formed on one side with sides with vconcave impact-receiving and of said vanes being provi l with concavo-convex. surfaces and upon their opposite sides with conveX-concavo faceportions providing pocket-like depressions o`f such shape fluid passing between the vanes will produce a vacuum ,between 'the vanes, and said vanes being ing edges withl grooves or'cuts adapted to as the same leavesfsaid vanes. j

plate for mountingv the impeller upon said shaft, said hub'being formed on one side wit-h convex surfaces such shape so that the fluid passing between connected with said chambered cover-sec-v convex surfaces 'and Aupon their opposite power-producing surfaces( and another seted upon ,one side 'so that the formed-in their leavproduce VWater-binshesy or rifes' of the fluid opening', and an a shaft rotatably ico being rotatably connected with the intake, Y

surfaces, said last-mentioned cancavo sur- 15 ha a# eemirfugawl pum-up, M1 mypelee duce a Wawy-mush l01 rime of ehe fluid iis element pfevdec with impeef Values? am?. leaves ehe vane, Substantial@ es am@ im? the means connected "with the leaving edges o purposes set oeth. said venes im" poducng Webe-'biushes or En testimony that claim the invention 5 rfes the mpellng Huid as it leaves ehe set 'forth above 1E have heeunto set my hemd g5 venes. y y this 18th day of December, 1911,

each mme being poved 'IL iis leaving .Femm C, FBAENTZEL,.

10 edge with e geove me eut aeepte 'to pfo- FREDK. HL. W. FBAENTZEL, 

